Self-microemulsifying drug delivery systems of Moringa oleifera extract for enhanced dissolution of kaempferol and quercetin-Reference-Cited by-同舟云学术

Self-microemulsifying drug delivery systems of Moringa oleifera extract for enhanced dissolution of kaempferol and quercetin

Published:2019-11-01 Issue:1 Volume:70 Page:77-88
ISSN:1846-9558
Container-title:Acta Pharmaceutica
language:en
Short-container-title:

Author:

Sermkaew Namfa¹²,Plyduang Thipapun¹²

Affiliation:

1. School of Pharmacy , Walailak University , Nakhon Si Thammarat , 80161, Thailand

2. Drug and Cosmetics Excellence Center , Walailak University , Nakhon Si Thammarat 80161, Thailand

Abstract

Abstract The aim of the present study was to develop self-microemulsifying drug delivery systems (SMEDDS) of the extract of Moringa oleifera, a herbal medicinal plant. Kaempferol and quercetin, the flavonoids present in the leaf extract of M. oleifera, were chosen as markers for quantification. The optimized formulation of SMEDDS consisted of propylene glycol dicaprylocaprate, polysorbate 80, and polyethylene glycol 400 (PEG 400) in a percentage ratio of 20:60:20 (m/m). SMEDDS emulsified immediately (within 20 s) after dilution in water, resulting in transparent microemulsions with a droplet size of 49 nm. SMEDDS could increase the solubility of kaempferol and quercetin to nearly 100 % within 15 min, whereas only a 30 % improvement in solubility was achieved in the case of crude extract. These results demonstrated SMEDDS to be a promising strategy to improve the solubility of M. oleifera extract-derived drugs, which, in turn, could prove beneficial to the herbal medicine field.

Publisher

Walter de Gruyter GmbH

Subject

Pharmaceutical Science,Pharmacology,General Medicine

Link

https://www.sciendo.com/pdf/10.2478/acph-2020-0012

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